4578981 has 32 divisors (see below), whose sum is σ = 7180800. Its totient is φ = 2566080.

The previous prime is 4578971. The next prime is 4578989. The reversal of 4578981 is 1898754.

It is not a de Polignac number, because 4578981 - 2⁵ = 4578949 is a prime.

It is a super-2 number, since 2×4578981² = 41934133996722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4578989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41955 + ... + 42063.

It is an arithmetic number, because the mean of its divisors is an integer number (224400).

Almost surely, 2^4578981 is an apocalyptic number.

It is an amenable number.

4578981 is a deficient number, since it is larger than the sum of its proper divisors (2601819).

4578981 is a wasteful number, since it uses less digits than its factorization.

4578981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its digits is 80640, while the sum is 42.

The square root of 4578981 is about 2139.8553689444. The cubic root of 4578981 is about 166.0566531360.

The spelling of 4578981 in words is "four million, five hundred seventy-eight thousand, nine hundred eighty-one".